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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
using System;
/// <summary>
/// System.Text.StringBuilder.Remove
/// </summary>
public class StringBuilderRemove
{
private const int c_MIN_STRING_LEN = 8;
private const int c_MAX_STRING_LEN = 256;
public static int Main()
{
StringBuilderRemove test = new StringBuilderRemove();
TestLibrary.TestFramework.BeginTestCase("for Method:System.Text.StringBuilder.Remove(indexStart,length)");
if (test.RunTests())
{
TestLibrary.TestFramework.EndTestCase();
TestLibrary.TestFramework.LogInformation("PASS");
return 100;
}
else
{
TestLibrary.TestFramework.EndTestCase();
TestLibrary.TestFramework.LogInformation("FAIL");
return 0;
}
}
public bool RunTests()
{
bool retVal = true;
TestLibrary.TestFramework.LogInformation("[Positive]");
retVal = PosTest1() && retVal;
retVal = PosTest2() && retVal;
retVal = PosTest3() && retVal;
retVal = PosTest4() && retVal;
TestLibrary.TestFramework.LogInformation("[Negative]");
retVal = NegTest1() && retVal;
retVal = NegTest2() && retVal;
retVal = NegTest3() && retVal;
retVal = NegTest4() && retVal;
return retVal;
}
public bool PosTest1()
{
bool retVal = true;
string oldString = TestLibrary.Generator.GetString(-55, false, c_MIN_STRING_LEN, c_MAX_STRING_LEN);
int startIndex = TestLibrary.Generator.GetInt32(-55) % Math.Max(1,oldString.Length);
int removedLength = TestLibrary.Generator.GetInt32(-55) % Math.Max(1,(oldString.Length-startIndex-1));
string newString = oldString.Remove(startIndex, removedLength);
TestLibrary.TestFramework.BeginScenario("PosTest1: Verify Remove subString form a StringBuilder ...");
System.Text.StringBuilder stringBuilder = new System.Text.StringBuilder(oldString);
System.Text.StringBuilder removedStringBuilder = new System.Text.StringBuilder(newString);
try
{
stringBuilder.Remove(startIndex,removedLength);
int compareResult = string.CompareOrdinal(stringBuilder.ToString(), removedStringBuilder.ToString());
if (compareResult != 0)
{
TestLibrary.TestFramework.LogError("001", "StringBuilder can't corrently remove");
retVal = false;
}
}
catch (Exception e)
{
TestLibrary.TestFramework.LogError("002", "Unexpected exception: " + e);
retVal = false;
}
return retVal;
}
public bool PosTest2()
{
bool retVal = true;
TestLibrary.TestFramework.BeginScenario("PosTest2:Verify StringBuilder Remove itself ");
string oldString = TestLibrary.Generator.GetString(-55, false, c_MIN_STRING_LEN, c_MAX_STRING_LEN);
int startIndex = 0;
int removedLength = oldString.Length;
try
{
System.Text.StringBuilder stringBuilder = new System.Text.StringBuilder(oldString);
stringBuilder.Remove(startIndex, removedLength);
if (stringBuilder.Length != 0)
{
TestLibrary.TestFramework.LogError("003", "StringBuilder can't corrently remove itself");
retVal = false;
}
}
catch(Exception e)
{
TestLibrary.TestFramework.LogError("004", "Unexpected exception: " + e);
retVal = false;
}
return retVal;
}
public bool PosTest3()
{
bool retVal = true;
string oldString = TestLibrary.Generator.GetString(-55, false, c_MIN_STRING_LEN, c_MAX_STRING_LEN);
int startIndex = 0;
int removedLength = TestLibrary.Generator.GetInt32(-55) % (oldString.Length - startIndex);
string newString = oldString.Remove(startIndex, removedLength);
TestLibrary.TestFramework.BeginScenario("PosTest3: Verify StringBuilder Remove form posization of 0 index ...");
System.Text.StringBuilder stringBuilder = new System.Text.StringBuilder(oldString);
System.Text.StringBuilder removedStringBuilder = new System.Text.StringBuilder(newString);
try
{
stringBuilder.Remove(startIndex, removedLength);
int compareResult = string.CompareOrdinal(stringBuilder.ToString(), removedStringBuilder.ToString());
if (compareResult != 0)
{
TestLibrary.TestFramework.LogError("005", "StringBuilder can't corrently remove from posization of 0 index");
retVal = false;
}
}
catch (Exception e)
{
TestLibrary.TestFramework.LogError("006", "Unexpected exception: " + e);
retVal = false;
}
return retVal;
}
public bool PosTest4()
{
bool retVal = true;
string oldString = TestLibrary.Generator.GetString(-55, false, c_MIN_STRING_LEN, c_MAX_STRING_LEN);
int startIndex = TestLibrary.Generator.GetInt32(-55) % oldString.Length;
int removedLength = 0;
string newString = oldString.Remove(startIndex, removedLength);
TestLibrary.TestFramework.BeginScenario("PosTest4: Verify StringBuilder Remove 0 length ...");
try
{
System.Text.StringBuilder stringBuilder = new System.Text.StringBuilder(oldString);
System.Text.StringBuilder removedStringBuilder = new System.Text.StringBuilder(newString);
stringBuilder.Remove(startIndex, removedLength);
if (stringBuilder.ToString() != removedStringBuilder.ToString())
{
TestLibrary.TestFramework.LogError("007", "StringBuilder can't corrently Remove 0 length");
retVal = false;
}
}
catch (Exception e)
{
TestLibrary.TestFramework.LogError("008", "Unexpected exception: " + e);
retVal = false;
}
return retVal;
}
public bool NegTest1()
{
bool retVal = true;
const string c_TEST_DESC = "NegTest1: StingBuilder length is 0 and length of removed larger than 0";
const string c_TEST_ID = "N001";
string oldString = TestLibrary.Generator.GetString(-55, false, 0, 0);
int startIndex = 0;
int removedLength = 0;
while (removedLength == 0)
{
removedLength = TestLibrary.Generator.GetInt32(-55);
}
System.Text.StringBuilder stringBuilder = new System.Text.StringBuilder(oldString);
TestLibrary.TestFramework.BeginScenario(c_TEST_DESC);
try
{
stringBuilder.Remove(startIndex, removedLength);
TestLibrary.TestFramework.LogError("009" + " TestId-" + c_TEST_ID, "ArgumentOutOfRangeException is not thrown as expected." );
retVal = false;
}
catch (ArgumentException)
{ }
catch (Exception e)
{
TestLibrary.TestFramework.LogError("010" + " TestId-" + c_TEST_ID, "Unexpected exception: " + e);
retVal = false;
}
return retVal;
}
public bool NegTest2()
{
bool retVal = true;
const string c_TEST_DESC = "NegTest2: StingBuilder length is 0 and started index larger than 0";
const string c_TEST_ID = "N002";
int startIndex = 0;
int removedLength = 0;
while (startIndex == 0)
{
startIndex = TestLibrary.Generator.GetInt32(-55);
}
string oldString = TestLibrary.Generator.GetString(-55, false, 0, 0);
System.Text.StringBuilder stringBuilder = new System.Text.StringBuilder(oldString);
TestLibrary.TestFramework.BeginScenario(c_TEST_DESC);
try
{
stringBuilder.Remove(startIndex, removedLength);
TestLibrary.TestFramework.LogError("011" + " TestId-" + c_TEST_ID, "ArgumentOutOfRangeException is not thrown as expected.");
retVal = false;
}
catch (ArgumentException)
{ }
catch (Exception e)
{
TestLibrary.TestFramework.LogError("012" + " TestId-" + c_TEST_ID, "Unexpected exception: " + e);
retVal = false;
}
return retVal;
}
public bool NegTest3()
{
bool retVal = true;
const string c_TEST_DESC = "NegTest3: length of Removed is larger than length of StringBuilder ";
const string c_TEST_ID = "N003";
string oldString = TestLibrary.Generator.GetString(-55, false, c_MIN_STRING_LEN, c_MAX_STRING_LEN);
int startIndex = TestLibrary.Generator.GetInt32(-55);
int removedLength = TestLibrary.Generator.GetInt32(-55);
while (startIndex <= oldString.Length )
{
startIndex = TestLibrary.Generator.GetInt32(-55);
}
System.Text.StringBuilder stringBuilder = new System.Text.StringBuilder(oldString);
TestLibrary.TestFramework.BeginScenario(c_TEST_DESC);
try
{
stringBuilder.Remove(startIndex, removedLength);
TestLibrary.TestFramework.LogError("013" + " TestId-" + c_TEST_ID, "ArgumentOutOfRangeException is not thrown as expected.");
retVal = false;
}
catch (ArgumentException)
{ }
catch (Exception e)
{
TestLibrary.TestFramework.LogError("014" + " TestId-" + c_TEST_ID, "Unexpected exception: " + e);
retVal = false;
}
return retVal;
}
public bool NegTest4()
{
bool retVal = true;
const string c_TEST_DESC = "NegTest4: Sum of length of Removed and index of started is larger than length of StringBuilder ";
const string c_TEST_ID = "N004";
string oldString = TestLibrary.Generator.GetString(-55, false, c_MIN_STRING_LEN, c_MAX_STRING_LEN);
int removedLength = TestLibrary.Generator.GetInt32(-55);
int startIndex = TestLibrary.Generator.GetInt32(-55) % (oldString.Length-removedLength);
System.Text.StringBuilder stringBuilder = new System.Text.StringBuilder(oldString);
TestLibrary.TestFramework.BeginScenario(c_TEST_DESC);
try
{
stringBuilder.Remove(startIndex, removedLength);
TestLibrary.TestFramework.LogError("015" + " TestId-" + c_TEST_ID, "ArgumentOutOfRangeException is not thrown as expected.");
retVal = false;
}
catch (ArgumentOutOfRangeException)
{ }
catch (Exception e)
{
TestLibrary.TestFramework.LogError("016" + " TestId-" + c_TEST_ID, "Unexpected exception: " + e);
retVal = false;
}
return retVal;
}
}
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